admin_notices
kanca kullanabilirsiniz
önce bildirim işlevini tanımlayın:
function my_admin_notice(){
//print the message
echo '<div id="message">
<p>metabox as errors on save message here!!!</p>
</div>';
//make sure to remove notice after its displayed so its only displayed when needed.
remove_action('admin_notices', 'my_admin_notice');
}
Gerektiğinde metabox kaydetme işlevini ekleyin:
...
...
if($errors){
add_action('admin_notices', 'my_admin_notice');
}
...
...
Güncelleştirme
Burada söz verdiğim gibi, meta kutumdan nasıl bir hata mesajı eklediğime bir örnek
<?php
/*
Plugin Name: one-trick-pony-notice
Plugin URI: http://en.bainternet.info
Description: Just to proof a point using admin notice form metabox
Version: 1.0
Author: Bainternet
Author URI: http://en.bainternet.info
*/
/* admin notice */
function my_admin_notice(){
//print the message
global $post;
$notice = get_option('otp_notice');
if (empty($notice)) return '';
foreach($notice as $pid => $m){
if ($post->ID == $pid ){
echo '<div id="message" class="error"><p>'.$m.'</p></div>';
//make sure to remove notice after its displayed so its only displayed when needed.
unset($notice[$pid]);
update_option('otp_notice',$notice);
break;
}
}
}
//hooks
add_action('add_meta_boxes', 'OT_mt_add');
add_action('save_post', 'OT_mt_save');
add_action('admin_notices', 'my_admin_notice',0);
//add metabox
function OT_mt_add() {
add_meta_box('OT_mt_sectionid', __( 'One Trick Meta Box notice', 'textdomain' ),'OT_mt_display','post');
}
//display metabox
function OT_mt_display() {
// Use nonce for verification
wp_nonce_field( plugin_basename(__FILE__), 'myplugin_noncename' );
// The actual fields for data entry
echo '<label for="myplugin_new_field">';
_e("leave blank to get a notice on publish or update", 'textdomain' );
echo '</label> ';
echo '<input type="text" id="ot_field" name="ot_field" value="" size="25" />';
}
//save metabox here is were i check the fields and if empty i display a message
function OT_mt_save( $post_id ) {
// verify this came from the our screen and with proper authorization,
// because save_post can be triggered at other times
if (!isset($_POST['myplugin_noncename'])) return $post_id;
if ( !wp_verify_nonce( $_POST['myplugin_noncename'], plugin_basename(__FILE__) ) )
return $post_id;
// verify if this is an auto save routine.
// If it is our form has not been submitted, so we dont want to do anything
if ( defined('DOING_AUTOSAVE') && DOING_AUTOSAVE )
return $post_id;
if(!isset($_POST['ot_field']) || empty($_POST['ot_field'])){
//field left empty so we add a notice
$notice = get_option('otp_notice');
$notice[$post_id] = "You have left the field empty";
update_option('otp_notice',$notice);
}
}
Şimdi bu kodu ararken post_updated_messages
ben de ekleyeceğim böylece aynı şekilde filtre kanca kullanarak yapmak benim eski yolunu buldum :
<?php
/*
Plugin Name: one-trick-pony-notice2
Plugin URI: http://en.bainternet.info
Description: just like the one above but this time using post_updated_messages hook
Version: 1.0
Author: Bainternet
Author URI: http://en.bainternet.info
*/
//hooks
add_filter('post_updated_messages','my_messages',0);
add_action('add_meta_boxes', 'OT_mt_add');
add_action('save_post', 'OT_mt_save');
//add metabox
function OT_mt_add() {
add_meta_box('OT_mt_sectionid', __( 'One Trick Meta Box notice', 'textdomain' ),'OT_mt_display','post');
}
//display metabox
function OT_mt_display() {
// Use nonce for verification
wp_nonce_field( plugin_basename(__FILE__), 'myplugin_noncename' );
// The actual fields for data entry
echo '<label for="myplugin_new_field">';
_e("leave blank to get a notice on publish or update", 'textdomain' );
echo '</label> ';
echo '<input type="text" id="ot_field" name="ot_field" value="" size="25" />';
}
//save metabox here is were i check the fields and if empty i display a message
function OT_mt_save( $post_id ) {
// verify this came from the our screen and with proper authorization,
// because save_post can be triggered at other times
if (!isset($_POST['myplugin_noncename'])) return $post_id;
if ( !wp_verify_nonce( $_POST['myplugin_noncename'], plugin_basename(__FILE__) ) )
return $post_id;
// verify if this is an auto save routine.
// If it is our form has not been submitted, so we dont want to do anything
if ( defined('DOING_AUTOSAVE') && DOING_AUTOSAVE )
return $post_id;
if(!isset($_POST['ot_field']) || empty($_POST['ot_field'])){
//field left empty so we add a notice
$notice = get_option('otp_notice');
$notice[$post_id] = "You have left the field empty";
update_option('otp_notice',$notice);
}
}
//messages filter
function my_messages($m){
global $post;
$notice = get_option('otp_notice');
if (empty($notice)) return $m;
foreach($notice as $pid => $mm){
if ($post->ID == $pid ){
foreach ($m['post'] as $i => $message){
$m['post'][$i] = $message.'<p>'.$mm.'</p>';
}
unset($notice[$pid]);
update_option('otp_notice',$notice);
break;
}
}
return $m;
}